THHQB32040 - 40Amp Circuit Breaker

THHQB32040 - 40 Amp Circuit Breaker

The THHQB32040 is a 40 Amp, 3-pole molded case circuit breaker designed to provide dependable overcurrent and short-circuit protection in your commercial, industrial, and institutional electrical distribution systems. As part of the trusted Q-Line family, this Type THHQB bolt-on circuit breaker delivers secure panelboard mounting and consistent performance in demanding electrical environments. With a 22kA interrupting capacity at 240VAC, the THHQB32040 helps safeguard equipment and electrical circuits against potentially damaging fault conditions while supporting reliable system operation.

Built for applications requiring a compact yet capable circuit protection solution, the THHQB32040 combines a space-efficient footprint with the durability expected from molded case circuit breakers. Its bolt-on design helps maintain a stable electrical connection, making it a practical choice for panelboard installations where dependable circuit protection is essential. Additionally, its HACR rating makes it suitable for use in heating, air conditioning, and refrigeration applications that require compliant branch circuit protection.

Key Features and Benefits

• 40 Amp Current Rating: 40 Amp current rating for reliable branch circuit protection.
• 3-Pole Configuration: 3-pole configuration designed for three-phase electrical systems.
• Type THHQB Construction: Type THHQB molded case circuit breaker construction.
• Bolt-On Mounting Design: Bolt-on mounting design for secure installation in compatible panelboards.
• 22kA Interrupting Capacity: 22kA interrupting capacity at 240VAC for enhanced fault protection.
• Q-Line Family: Part of the respected Q-Line circuit breaker family.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration applications.
• Compact Dimensions: Compact dimensions help maximize available panel space.
• Equipment Protection: Helps protect electrical equipment from overloads and short circuits.
  

Technical Specifications

• Part Number: THHQB32040
  
• Type: THHQB
  
• Current Rating: 40 Amps
  
• Poles: 3
  
• Voltage Rating: 240 VAC
  
• Interrupting Capacity (A.I.C.): 22kA @ 240VAC
  
• Mounting Style: Bolt-On
  
• Product Family: Q-Line
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 3.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated: HACR (Heating, Air Conditioning, and Refrigeration) Rated.
• Industry Standards: Manufactured and tested to meet applicable industry standards for molded case circuit breakers.
• Electrical Distribution Equipment Compatibility: Designed for use in compatible electrical distribution equipment and panelboard systems.
• Protection Requirements Support: Supports overcurrent and short-circuit protection requirements in commercial and industrial applications.
  

Where It Works Best

• The THHQB32040 is well suited for commercial buildings, industrial facilities, office complexes, retail environments, schools, and other electrical distribution systems requiring dependable three-phase circuit protection. Its HACR rating also makes it a strong choice for HVAC equipment, refrigeration systems, air handling units, and related mechanical installations where reliable overcurrent protection is critical to maintaining operational continuity.